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send_index.go
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/
send_index.go
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//
// Copyright 2019 Insolar Technologies GmbH
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package proc
import (
"context"
"fmt"
"github.com/insolar/insolar/insolar/bus"
"github.com/insolar/insolar/insolar/payload"
"github.com/insolar/insolar/ledger/object"
"github.com/pkg/errors"
)
type SendIndex struct {
meta payload.Meta
dep struct {
indexes object.IndexAccessor
sender bus.Sender
}
}
func (p *SendIndex) Dep(
indexes object.IndexAccessor,
sender bus.Sender,
) {
p.dep.indexes = indexes
p.dep.sender = sender
}
func NewSendIndex(meta payload.Meta) *SendIndex {
return &SendIndex{
meta: meta,
}
}
func (p *SendIndex) Proceed(ctx context.Context) error {
ensureIndex := payload.GetIndex{}
err := ensureIndex.Unmarshal(p.meta.Payload)
if err != nil {
return errors.Wrap(err, "failed to unmarshal ensureIndex message")
}
idx, err := p.dep.indexes.ForID(ctx, p.meta.Pulse, ensureIndex.ObjectID)
if err == object.ErrIndexNotFound {
return &payload.CodedError{
Code: payload.CodeNotFound,
Text: fmt.Sprintf("index not found for %v", ensureIndex.ObjectID.DebugString()),
}
}
if err != nil {
return errors.Wrapf(
err,
"failed to fetch object index for %v", ensureIndex.ObjectID.String(),
)
}
buf := object.EncodeLifeline(idx.Lifeline)
msg, err := payload.NewMessage(&payload.Index{
Index: buf,
})
if err != nil {
return errors.Wrap(err, "failed to create reply")
}
p.dep.sender.Reply(ctx, p.meta, msg)
return nil
}